import java.util.Scanner;
public class Four{
	public static void main(String[] args){
	int sum = 0;
	Scanner sc = new Scanner(System.in);
	for(int i=0;i<=5;i++){
	System.out.println("Please enter the results:");
	int n = sc.nextInt();
	if(n<0||n>100){
	System.out.println("You entered the wrong grade");
	break;
	}else{
	sum +=n;
	}
	}
	System.out.println("sum:"+sum);
	}
}